feat: add Excel (.xlsx) export alongside CSV

Use SheetJS (xlsx) for proper Excel file generation.
Both export buttons available: Excel as primary, CSV as secondary.
This commit is contained in:
tiennm99 committed 2026-04-03 23:22:57 +07:00
1 parent 5c683f4c47
commit b2a7070d54
3 files changed
+141 -26

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+105 -1
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@@ -15,7 +15,8 @@
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"react-datepicker": "^8.4.0",
"react-dom": "^19.0.0"
"react-dom": "^19.0.0",
"xlsx": "^0.18.5"
},
"devDependencies": {
"@eslint/eslintrc": "^3",
@@ -2078,6 +2079,15 @@
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}
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@@ -2477,6 +2487,19 @@
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@@ -2519,6 +2542,15 @@
"node": ">=6"
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@@ -2558,6 +2590,18 @@
"dev": true,
"license": "MIT"
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"license": "Apache-2.0",
"bin": {
"crc32": "bin/crc32.njs"
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@@ -3561,6 +3605,15 @@
"node": ">= 6"
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@@ -5739,6 +5792,18 @@
"node": ">=0.10.0"
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@@ -6350,6 +6415,24 @@
"url": "https://github.com/sponsors/ljharb"
}
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"license": "Apache-2.0",
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@@ -6360,6 +6443,27 @@
"node": ">=0.10.0"
}
},
"node_modules/xlsx": {
"version": "0.18.5",
"resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.18.5.tgz",
"integrity": "sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==",
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"cfb": "~1.2.1",
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"crc-32": "~1.2.1",
"ssf": "~0.11.2",
"wmf": "~1.0.1",
"word": "~0.3.0"
},
"bin": {
"xlsx": "bin/xlsx.njs"
},
"engines": {
"node": ">=0.8"
}
},
"node_modules/yallist": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/yallist/-/yallist-5.0.0.tgz",
+2 -1
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@@ -16,7 +16,8 @@
"next": "16.1.5",
"react": "^19.0.0",
"react-datepicker": "^8.4.0",
"react-dom": "^19.0.0"
"react-dom": "^19.0.0",
"xlsx": "^0.18.5"
},
"devDependencies": {
"@eslint/eslintrc": "^3",
+34 -24
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@@ -4,6 +4,7 @@ import React, { useState, useEffect, useCallback } from "react";
import DatePicker from "react-datepicker";
import "react-datepicker/dist/react-datepicker.css";
import { format, subDays, startOfMonth } from "date-fns";
import * as XLSX from "xlsx";
function LoadingSpinner({ progress }) {
return (
@@ -202,35 +203,36 @@ export default function ExchangeRateViewer() {
handleFetch();
}, []); // eslint-disable-line react-hooks/exhaustive-deps
const escapeCsv = (value) => {
const str = String(value ?? "");
const escaped = str.replace(/"/g, '""');
if (/^[=+\-@\t\r]/.test(escaped)) return `"'${escaped}"`;
return `"${escaped}"`;
const getExportRows = () => {
if (selectedBank === "bidv") {
const headers = ["Date", "NameVI", "MuaTm", "MuaCk", "Currency", "NameEN", "Ban"];
const rows = results.map((row) => [row.date, row.nameVI, row.muaTm, row.muaCk, row.currency, row.nameEN, row.ban]);
return [headers, ...rows];
}
const headers = ["Date", "Label", "AskRate", "BidRateCK", "BidRateTM", "SourceCurrency", "TargetCurrency", "AskRateTM"];
const rows = results.map((row) => [row.date, row.label, row.askRate, row.bidRateCK, row.bidRateTM, row.sourceCurrency, row.targetCurrency, row.askRateTM]);
return [headers, ...rows];
};
const handleExport = () => {
const baseFilename = `exchange_rates_${selectedBank}_${selectedCurrency}_${new Date().toISOString().split("T")[0]}`;
const handleExportExcel = () => {
if (results.length === 0) return;
let csvContent = "";
let headers = [];
if (selectedBank === "bidv") {
headers = ["Date", "NameVI", "MuaTm", "MuaCk", "Currency", "NameEN", "Ban"];
csvContent = headers.join(",") + "\n";
csvContent += results
.map((row) => [row.date, row.nameVI, row.muaTm, row.muaCk, row.currency, row.nameEN, row.ban].map(escapeCsv).join(","))
.join("\n");
} else {
headers = ["Date", "Label", "AskRate", "BidRateCK", "BidRateTM", "SourceCurrency", "TargetCurrency", "AskRateTM"];
csvContent = headers.join(",") + "\n";
csvContent += results
.map((row) => [row.date, row.label, row.askRate, row.bidRateCK, row.bidRateTM, row.sourceCurrency, row.targetCurrency, row.askRateTM].map(escapeCsv).join(","))
.join("\n");
}
const blob = new Blob([csvContent], { type: "text/csv;charset=utf-8;" });
const ws = XLSX.utils.aoa_to_sheet(getExportRows());
const wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "Exchange Rates");
XLSX.writeFile(wb, `${baseFilename}.xlsx`);
};
const handleExportCsv = () => {
if (results.length === 0) return;
const ws = XLSX.utils.aoa_to_sheet(getExportRows());
const csv = XLSX.utils.sheet_to_csv(ws);
const blob = new Blob([csv], { type: "text/csv;charset=utf-8;" });
const url = URL.createObjectURL(blob);
const link = document.createElement("a");
link.href = url;
link.download = `exchange_rates_${selectedBank}_${selectedCurrency}_${new Date().toISOString().split("T")[0]}.csv`;
link.download = `${baseFilename}.csv`;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
@@ -365,7 +367,15 @@ export default function ExchangeRateViewer() {
</button>
<button
className="bg-emerald-600 hover:bg-emerald-700 active:bg-emerald-800 text-white text-sm font-medium px-5 py-2 rounded-lg transition-colors disabled:opacity-50 disabled:cursor-not-allowed focus:outline-none focus:ring-2 focus:ring-emerald-500/40"
onClick={handleExport}
onClick={handleExportExcel}
disabled={results.length === 0 || isLoading}
>
Export Excel
</button>
<button
className="text-sm font-medium px-5 py-2 rounded-lg border transition-colors disabled:opacity-50 disabled:cursor-not-allowed focus:outline-none focus:ring-2 focus:ring-blue-500/30"
style={{ borderColor: "var(--input-border)", color: "var(--foreground)" }}
onClick={handleExportCsv}
disabled={results.length === 0 || isLoading}
>
Export CSV